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<p>Noise floor estimation structs and prototypes.  
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &quot;sbr_encoder.h&quot;</code><br />
<code>#include &quot;<a class="el" href="fram__gen_8h_source.html">fram_gen.h</a>&quot;</code><br />
</div>
<p><a href="nf__est_8h_source.html">Go to the source code of this file.</a></p>
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Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">SBR_NOISE_FLOOR_ESTIMATE</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Macros</h2></td></tr>
<tr class="memitem:ae812b4f5129b118034b5822a08c40460"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="nf__est_8h.html#ae812b4f5129b118034b5822a08c40460">NF_SMOOTHING_LENGTH</a>&#160;&#160;&#160;4</td></tr>
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Typedefs</h2></td></tr>
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typedef <a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">SBR_NOISE_FLOOR_ESTIMATE</a> *&#160;</td><td class="memItemRight" valign="bottom"><b>HANDLE_SBR_NOISE_FLOOR_ESTIMATE</b></td></tr>
<tr class="separator:a61cd467e72e64feb2ece17b172372fa5"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a293a9fbea021b2583d26875f781a1dc1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="nf__est_8h.html#a293a9fbea021b2583d26875f781a1dc1">FDKsbrEnc_sbrNoiseFloorEstimateQmf</a> (<a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">HANDLE_SBR_NOISE_FLOOR_ESTIMATE</a> h_sbrNoiseFloorEstimate, const <a class="el" href="struct_s_b_r___f_r_a_m_e___i_n_f_o.html">SBR_FRAME_INFO</a> *frame_info, FIXP_DBL *noiseLevels, FIXP_DBL **quotaMatrixOrig, <a class="el" href="machine__type_8h.html#af3e70e9edd31fb299154d959c70ac6bf">SCHAR</a> *indexVector, <a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> missingHarmonicsFlag, <a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> startIndex, <a class="el" href="machine__type_8h.html#afff0ab3629a68bc1bb3b2a2f4296173f">UINT</a> numberOfEstimatesPerFrame, <a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> transientFrame, INVF_MODE *pInvFiltLevels, <a class="el" href="machine__type_8h.html#afff0ab3629a68bc1bb3b2a2f4296173f">UINT</a> sbrSyntaxFlags)</td></tr>
<tr class="separator:a293a9fbea021b2583d26875f781a1dc1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8e5cf16bea38235813513e43d086878e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="nf__est_8h.html#a8e5cf16bea38235813513e43d086878e">FDKsbrEnc_InitSbrNoiseFloorEstimate</a> (<a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">HANDLE_SBR_NOISE_FLOOR_ESTIMATE</a> h_sbrNoiseFloorEstimate, <a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> ana_max_level, const <a class="el" href="machine__type_8h.html#aed5a2dbe32af3a91203f0f5e8697e873">UCHAR</a> *freqBandTable, <a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> nSfb, <a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> noiseBands, <a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> noiseFloorOffset, <a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> timeSlots, <a class="el" href="machine__type_8h.html#afff0ab3629a68bc1bb3b2a2f4296173f">UINT</a> useSpeechConfig)</td></tr>
<tr class="memdesc:a8e5cf16bea38235813513e43d086878e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initialize an instance of the noise floor level estimation module.  <a href="nf__est_8h.html#a8e5cf16bea38235813513e43d086878e">More...</a><br /></td></tr>
<tr class="separator:a8e5cf16bea38235813513e43d086878e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1e41d7f1eb3fb933aa7b909789624a27"><td class="memItemLeft" align="right" valign="top"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="nf__est_8h.html#a1e41d7f1eb3fb933aa7b909789624a27">FDKsbrEnc_resetSbrNoiseFloorEstimate</a> (<a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">HANDLE_SBR_NOISE_FLOOR_ESTIMATE</a> h_sbrNoiseFloorEstimate, const <a class="el" href="machine__type_8h.html#aed5a2dbe32af3a91203f0f5e8697e873">UCHAR</a> *freqBandTable, <a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> nSfb)</td></tr>
<tr class="memdesc:a1e41d7f1eb3fb933aa7b909789624a27"><td class="mdescLeft">&#160;</td><td class="mdescRight">Resets the current instance of the noise floor estiamtion module.  <a href="nf__est_8h.html#a1e41d7f1eb3fb933aa7b909789624a27">More...</a><br /></td></tr>
<tr class="separator:a1e41d7f1eb3fb933aa7b909789624a27"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a328d8c3a23e87f2469c4dd339d4f56b5"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="nf__est_8h.html#a328d8c3a23e87f2469c4dd339d4f56b5">FDKsbrEnc_deleteSbrNoiseFloorEstimate</a> (<a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">HANDLE_SBR_NOISE_FLOOR_ESTIMATE</a> h_sbrNoiseFloorEstimate)</td></tr>
<tr class="memdesc:a328d8c3a23e87f2469c4dd339d4f56b5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Deletes the current instancce of the noise floor level estimation module.  <a href="nf__est_8h.html#a328d8c3a23e87f2469c4dd339d4f56b5">More...</a><br /></td></tr>
<tr class="separator:a328d8c3a23e87f2469c4dd339d4f56b5"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Noise floor estimation structs and prototypes. </p>
<dl class="section rcs"><dt>Revision</dt><dd>92790 </dd></dl>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="ae812b4f5129b118034b5822a08c40460"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae812b4f5129b118034b5822a08c40460">&#9670;&nbsp;</a></span>NF_SMOOTHING_LENGTH</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define NF_SMOOTHING_LENGTH&#160;&#160;&#160;4</td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Smoothing length of the noise floors. </p>

</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="a328d8c3a23e87f2469c4dd339d4f56b5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a328d8c3a23e87f2469c4dd339d4f56b5">&#9670;&nbsp;</a></span>FDKsbrEnc_deleteSbrNoiseFloorEstimate()</h2>

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        <tr>
          <td class="memname">void FDKsbrEnc_deleteSbrNoiseFloorEstimate </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">HANDLE_SBR_NOISE_FLOOR_ESTIMATE</a>&#160;</td>
          <td class="paramname"><em>h_sbrNoiseFloorEstimate</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Deletes the current instancce of the noise floor level estimation module. </p>
<p>Handle to <a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">SBR_NOISE_FLOOR_ESTIMATE</a> struct</p>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">h_sbrNoiseFloorEstimate</td><td>Handle to <a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">SBR_NOISE_FLOOR_ESTIMATE</a> struct </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a id="a8e5cf16bea38235813513e43d086878e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8e5cf16bea38235813513e43d086878e">&#9670;&nbsp;</a></span>FDKsbrEnc_InitSbrNoiseFloorEstimate()</h2>

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      <table class="memname">
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          <td class="memname"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> FDKsbrEnc_InitSbrNoiseFloorEstimate </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">HANDLE_SBR_NOISE_FLOOR_ESTIMATE</a>&#160;</td>
          <td class="paramname"><em>h_sbrNoiseFloorEstimate</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td>
          <td class="paramname"><em>ana_max_level</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="machine__type_8h.html#aed5a2dbe32af3a91203f0f5e8697e873">UCHAR</a> *&#160;</td>
          <td class="paramname"><em>freqBandTable</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td>
          <td class="paramname"><em>nSfb</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td>
          <td class="paramname"><em>noiseBands</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td>
          <td class="paramname"><em>noiseFloorOffset</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td>
          <td class="paramname"><em>timeSlots</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#afff0ab3629a68bc1bb3b2a2f4296173f">UINT</a>&#160;</td>
          <td class="paramname"><em>useSpeechConfig</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Initialize an instance of the noise floor level estimation module. </p>
<dl class="section return"><dt>Returns</dt><dd>errorCode, noError if successful </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">h_sbrNoiseFloorEstimate</td><td>Handle to <a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">SBR_NOISE_FLOOR_ESTIMATE</a> struct </td></tr>
    <tr><td class="paramname">ana_max_level</td><td>Maximum level of the adaptive noise. </td></tr>
    <tr><td class="paramname">freqBandTable</td><td>Frequency band table. </td></tr>
    <tr><td class="paramname">nSfb</td><td>Number of frequency bands. </td></tr>
    <tr><td class="paramname">noiseBands</td><td>Number of noise bands per octave. </td></tr>
    <tr><td class="paramname">noiseFloorOffset</td><td>Noise floor offset. </td></tr>
    <tr><td class="paramname">timeSlots</td><td>Number of time slots in a frame. </td></tr>
    <tr><td class="paramname">useSpeechConfig</td><td>Flag: adapt tuning parameters according to speech </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a id="a1e41d7f1eb3fb933aa7b909789624a27"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1e41d7f1eb3fb933aa7b909789624a27">&#9670;&nbsp;</a></span>FDKsbrEnc_resetSbrNoiseFloorEstimate()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a> FDKsbrEnc_resetSbrNoiseFloorEstimate </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">HANDLE_SBR_NOISE_FLOOR_ESTIMATE</a>&#160;</td>
          <td class="paramname"><em>h_sbrNoiseFloorEstimate</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="machine__type_8h.html#aed5a2dbe32af3a91203f0f5e8697e873">UCHAR</a> *&#160;</td>
          <td class="paramname"><em>freqBandTable</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td>
          <td class="paramname"><em>nSfb</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Resets the current instance of the noise floor estiamtion module. </p>
<p>Number of bands in the frequency band table.</p>
<dl class="section return"><dt>Returns</dt><dd>errorCode, noError if successful </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">h_sbrNoiseFloorEstimate</td><td>Handle to <a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">SBR_NOISE_FLOOR_ESTIMATE</a> struct </td></tr>
    <tr><td class="paramname">freqBandTable</td><td>Frequency band table. </td></tr>
    <tr><td class="paramname">nSfb</td><td>Number of bands in the frequency band table. </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a id="a293a9fbea021b2583d26875f781a1dc1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a293a9fbea021b2583d26875f781a1dc1">&#9670;&nbsp;</a></span>FDKsbrEnc_sbrNoiseFloorEstimateQmf()</h2>

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          <td class="memname">void FDKsbrEnc_sbrNoiseFloorEstimateQmf </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">HANDLE_SBR_NOISE_FLOOR_ESTIMATE</a>&#160;</td>
          <td class="paramname"><em>h_sbrNoiseFloorEstimate</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="struct_s_b_r___f_r_a_m_e___i_n_f_o.html">SBR_FRAME_INFO</a> *&#160;</td>
          <td class="paramname"><em>frame_info</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">FIXP_DBL *&#160;</td>
          <td class="paramname"><em>noiseLevels</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">FIXP_DBL **&#160;</td>
          <td class="paramname"><em>quotaMatrixOrig</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#af3e70e9edd31fb299154d959c70ac6bf">SCHAR</a> *&#160;</td>
          <td class="paramname"><em>indexVector</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td>
          <td class="paramname"><em>missingHarmonicsFlag</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td>
          <td class="paramname"><em>startIndex</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#afff0ab3629a68bc1bb3b2a2f4296173f">UINT</a>&#160;</td>
          <td class="paramname"><em>numberOfEstimatesPerFrame</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#a4cf9af43a95c45c3d469658098dfbe1a">INT</a>&#160;</td>
          <td class="paramname"><em>transientFrame</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">INVF_MODE *&#160;</td>
          <td class="paramname"><em>pInvFiltLevels</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="machine__type_8h.html#afff0ab3629a68bc1bb3b2a2f4296173f">UINT</a>&#160;</td>
          <td class="paramname"><em>sbrSyntaxFlags</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">h_sbrNoiseFloorEstimate</td><td>Handle to <a class="el" href="struct_s_b_r___n_o_i_s_e___f_l_o_o_r___e_s_t_i_m_a_t_e.html">SBR_NOISE_FLOOR_ESTIMATE</a> struct </td></tr>
    <tr><td class="paramname">frame_info</td><td>Time frequency grid of the current frame. </td></tr>
    <tr><td class="paramname">noiseLevels</td><td>Pointer to vector to store the noise levels in. </td></tr>
    <tr><td class="paramname">quotaMatrixOrig</td><td>Matrix holding the quota values of the original. </td></tr>
    <tr><td class="paramname">indexVector</td><td>Index vector to obtain the patched data. </td></tr>
    <tr><td class="paramname">missingHarmonicsFlag</td><td>Flag indicating if a strong tonal component will be missing. </td></tr>
    <tr><td class="paramname">startIndex</td><td>Start index. </td></tr>
    <tr><td class="paramname">numberOfEstimatesPerFrame</td><td>The number of tonality estimates per frame. </td></tr>
    <tr><td class="paramname">transientFrame</td><td>A flag indicating if a transient is present. </td></tr>
    <tr><td class="paramname">pInvFiltLevels</td><td>Pointer to the vector holding the inverse filtering levels. </td></tr>
  </table>
  </dd>
</dl>

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